Stars
What is a star?
a massive celestial body that is made of gas and emits light and electromagnetic energy
The temperature of a blue star is. (in Celsius)?
30,000 C
How long does a star usually last?
Billions of years
Stars vary in what?
Size, mass, and density
What is the first formation of a star?
A nebula
The color of the star tell us the...?
TEMPATURE
The temperature of a white star is?
7,500- 10,000 C
The diagram shows the pattern?
Hertzsprung-Russel
What has more mass than most stars?
The sun
What is a nebula?
A cloud of dust and gas
What are stars made up of?
Hydrogen, Helium, little carbon, oxygen, and nitrogen
What is the temperature of a red star?
<3,500
A pattern exists correlating?
Temperature and Luminosity
What's its diameter?
1.39 million km
What happens when we have fusion?
we have a STAR
What helps us figure out the temperature?
Spectrogram
What is the hottest star in Fahrenheit?
54,032 F
What is Luminosity?
How much energy is released per second
What is 1.39 million km in miles?
862,00 miles
What is the second step of the formation of a star?
Protostar
What is a star caused by?
Nuclear Fusion
What is the coldest star in Fahrenheit?
6,332 F
The farther up.....?
The grater the brightness
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Giants can be but not ?
very bright; hot